In the article, “Evaluation of Microcytosis,” (November 1, 2010, page 1117), two of the cells in Figure 1 on page 1120 were inadvertently switched. In the third row of the algorithm, the low ferritin level should have led to “Iron deficiency anemia” and the “Ferritin level normal to high” should have led to “Check serum iron level, TIBC, and transferrin saturation.” The online version of this figure has been corrected and the figure is reprinted here.
Figure 1. Diagnosing the Cause of Microcytosis
Suggested algorithm for diagnosing the cause of microcytosis in adults. (TIBC = total iron-binding capacity.)
Information from references 1, 2, 5, 17, 18, 20, and 21.
